Description

5-Chloro-3-[(1,5-Dihydroxy-2-Naphthyl)Azo]-2-Hydroxybenzenesulphonic Acid is a specialized azo dye intermediate known for its distinct chromophoric structure. This compound is valued for its role in synthesizing high-performance dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vivid and durable colorants.

Application

• Key intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Precursor in manufacturing specialty inks for printing and packaging applications.
• Used in research and development of functional dyes for optical and electronic applications.
• Potential component in the formulation of analytical reagents and indicators.
• Employed in the production of colorants for plastics and polymers.
• Starting material for creating metal complex dyes with enhanced properties.

Basic Information

Product Name	5-Chloro-3-[(1,5-Dihydroxy-2-Naphthyl)Azo]-2-Hydroxybenzenesulphonic Acid
CAS No.	25747-06-2
Molecular Formula	C₁₇H₁₁ClN₂O₆S
Molecular Weight	406.80 g/mol
Synonyms	5-Chloro-3-[(1,5-dihydroxy-2-naphthyl)azo]-2-hydroxybenzenesulfonic acid; 2-Hydroxy-5-chloro-3-[(1,5-dihydroxy-2-naphthyl)azo]benzenesulfonic acid; Benzenesulfonic acid, 5-chloro-3-[(1,5-dihydroxy-2-naphthyl)azo]-2-hydroxy-; C.I. 15710; Acid Dye Intermediate 25747-06-2; Azo dye intermediate CAS 25747-06-2
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is analyzed to confirm identity, purity, and consistency. Certificates of Analysis (COA) are available upon request, detailing all relevant specifications and test results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.